Reinforced brake-shoe.



J. J. MORSE,

RBINPORGED BRAKE SHOE.

APPLICATION FILED AUG. 19, 1912.

L T E 1 E r. Q a... D .m A E d tu l m j na Du.

J. J. MORSE.

REINFORGED BRAKE SHOE.

APPLICATION FILED AUG.19. 1912.

LQQ, v PatentedApr.28,l914.

l 5 SHEETS-SHEBT 2.

J. J. MORSE.

REINFORGED BRAKE SHOE. V APPLIGATION FILED AUG.19, 1912.

95,01 9. Patented 11111.28, 1914.

5 SHEETS-SHEET 3.

J. J. MORSE. ,I

REINPOEGED BRAKE SHOE. APPLICATION FILED AUG.19, 1912.

gol, Patented A111128, 1914.

5 SHEETS-MEET 4.

J. J. MORSE.

RBINFORCED BRAKE SHOE.

APPLICATION FILED AUG.19, 1912.

1,095,01 9, Patented A111228, 1914,

5 SHEETS-SHEET 5.

16 7 'F' .15. (L7 1g jzz --W/ 1 z3 13 la @YV t Ft'yallr 3 UNITED sTATEsJOHN J. MORSE, 0F ST. LUIS, MISSOURI.

nEINEon-CED BRAKE-SHOE.

Specification of Letters Patent.

Patented Apr. '28, 1914.

'Application inea August 19, i912. serial no. 715,797.

To all whom it may concern:

Be it known that I, JOHN J. MonsE, a citizen of the United States,residing at the city of St. Louis, State of Missouri, have inventedcertain new and useful Improvements in Reinforced Brake-Shoes, of whichthe following is a specification.

This invention relates to new and usefu improvements in brake-shoes, andhas for its object to provide a brake-shoe which is composed of'relatively hard and soft metals in order to obtain increased frictionaland wearing qualities and at the saine time to increase the strength andlongevity of the brake-shoe. l

In the accompanying drawings forming part of this specification, inwhich like nurnbers of reference denote like parts wherever they occur,Figure 1 is a longitudinal sectional view of an improved brake-shoeembodying the present invention; Fig. 2 is a transverse sectional viewon the. line 2'-2, Fig. 1 Figs. 3, 4, and 5 arev perspective views ofthe reinforcingelements; Fig. 6- is a longitudinal sectional view of abrake-shoe ern-- bodying an alternate form of the present invention;Fig. 7 is a transverse sectional view on the line 7-7, Fig. 6; Fig. 8ivis a perspective skeleton view of the reinforcing elements, which areused inthe structurel depicted in Figs. 6 and 7 Fig. 9 isa transversesectional view of a brake-shoe having an alternate form ofreinforcingelementslocated therein; Figs. 10-and 11 are side and frontviews,

respectively, of this reinforcing element; Fig.A 12 isa transversesectional viewllof a brake-shoe having an alternate form ot reinforcingelement located therein; Fig.`\ 13 is a longitudinal sectional viewonthe line 13 -13, Fig. 12; Fig. 14 isa lfan view of the pattern of thereinforcing element, which is used in the structure depicted in Figs. 12and 13; Fig...15 is a transverse sectional view of a brake-shoe havingan alternate form of reinforcing element located therein; Fig. 16 is alongitudinal sectional view on the line 16-16, Fig. 15; and, Fig. 17 isa plan view of the pattern of the reinforcing element, which is usedinthe struc ture depicted in Figs. 15 and- 16,

In the drawings, the brake-shoe is designated 1 and isv preferablyformed of castiron. The brake-shoe is reindorced by a plate 2 ofwrought, ductile, or other tough metal, which late ispreferably locatedvnear the back oli tie brake-shoe and is arcuated similarly'to the backof the brake-shoe, being provided with perforations 3 so that the castmetal fills same and thereby holds the plate irmly in the body of thebrake'-l shoe. Adjacent the ends of the brakeshoe 1, the plate 2I isbent at the points 4 so that the end" portions 5 thereof extend towardthe Wearing face of the brake-shoe.V Located within the body of thebrake-shoe 1 and extending between the end portions 5 of the pilate 2 isa plate `6l'or a plurality of such plates, said plate or plates 6 being,also, provided with perforations 3 so as to be held l'irmly in the bodyof the brake-shoe by the cast metal that fill-s said perforations. Theplate or pilates 6 may be either straight as depicted in Fig. 1, orarcuated ,asdepicted 1n Flg. 6, and, whentwoor more plates 6 are used,same are preferably of different lengths, the shortest being locatednearest the wearing facenof the brake-shoe, the next lon-ger near theshortest, and so on toward the'baclc of the brake-shoe. The perforations3- may be arranged in either a regular or' an irregular' manner 'in theplates 2 and 6, and by reason of the provisionof same particularly inthe plate or plates 6- a-nd the end portions 5f of the plate 2, thefrictional quali-ties of the wearingl portion vof the brake-shoe aregreatly enhanced, due to the brake-shoe being composed yof therelatively hard wrought or ductile metal of said ,plates and therelatively soft cast-'metal of the v brakeshoe, and the strength andlongevity 'of the brake-shoe are greatly increased.

The brake-shoe may be provided withI the usufali key' lug 7 as depictedin- Fig. 1, or a plurality of such key lugs as: de ictedin Fig. 6L Each:lug 7 may be rein -orced by means of a Ushapedf plate 8, which is solocated in said lug that same straddles the opening 9 therein, andtheends of same eX- tend through slots 105 in the plate 2 into the body ofthe brakefshoe sor asvto be anchored firmly in: the cast-metal in. thebody ofthe shoe. Said plate 8 is, also, provided with perforations 3 sothat the cast-metal will run into and till same and thereby hold saidplate firmly inv pla in the lug 7.. By this arrangement each. key lu 7is greatly strengthened and is prevented from being broken4 in use.

lif' desired, the plate 2 may be provided with arelatively wideextension or tongue 11 or a plurality of suchl extensions or tonguesasdepicted ini Figs.9, 10, and 11, in

' in these gures, the plate 2 is provided with a pair of extensions 11;which extensions project from one side of said plate and extenddiagonally through the body of the brakeshoe toward the wearing'face ofthe `latter adjacent the other side of the brake# shoe, being, also,provided with perforations 3 so that the cast-metal will run into ,andll said erforations, whereby the eX- tensions 11 will be held firmly inplacein the cast-metal and together with the castmetalwill increase thefrictional qualities of the wearing part of the brake-shoe. It should beunderstood that the plate 2 may ybe provided with. only one extension11, if so desired, and, furthermore, that' when the plate 2 is providedwith more thanv one extensionll, all of the extensions may project fromone side of the plate 2, or, if desired, each side of said plate maybear an extenf sion 11 or a plurality ofsuch extensions.

In an alternate form of the invention'depictedl Ain Figs`- 12 to 17,inclusive, the plate 2 and ithe plate-or plates 6 are omitted entirely,and a plate-12de substituted in lieu thereof, which plate 12,/while itis preferably free from perforations 3 as villustrated in the drawings,maybeA provided with such perforations,lif s odesired. The plate 12 islocated near theback of the brakeshoe l, andbears a pluralityl of arms13, some of which arms project from one side of said plate and othersproject frompthe' opposite side of said plate, the arms 13 borne by one:side of the plate 12 being spacedapart and arranged in staggeredrelationwith respect to the arms 13, which areborne lby the other. sideof said plate and are, also, spaced apart, as best seen in the patternsof said plate'v depicted in Figs. 14 and 17. The arms 13 are bent so asto extend diagonally through the bodyof the brake-shoe from oppositesides of the 'plate 12 so that the `arms 13 borne by one side of saidplate extend between the arms 13`borne by ,the other side of said plate,and by this arrangement not onlyanchor the plate 12 firmly in thecast-metal of the brake-shoe, but increaseA the frictional qualities ofthe wearing part lof the brake-shoe. Said arms 13 4may be of such lengththat same will -extend substantially straight from the side of the plate12 diagonally through the body of the brake-shoe to a point near thewearing face of the brake-shoe, as depicted in Figs. 12 and 13, or ifdesired said arms may bejrelatively long, in which case each arm- 13 is-bent at the point 14 intermediate the end of said arm and its point ofjuncture with the plate 12, so4 that the part extending between the bend14 andthe point of junc- -ture with the plate' 12 diverges toward saidplate, and the part extending from the bend 14 to the end of said armdivei'ges toward the wearing face of the brake-shoe as depicted inFigs.` 15 and 16. It should be understood that, if desired, the arms 13may be still longer and provided with more bends 14 than shown in Figs.15 and 16.

It will be evident that the wrought or ductile reinforcing plates notonly increase the strength of the brake-shoe, but the Ypresence of samein the wearing part of the brakeshoe enhances its4 braking qualities andthereby increases the longevity of the brakeshoe. Byreason of using aplate or a plurality of plates having perforations 3 formed therein orbearing extensions 11 or arms 13 as hereinabove described, thedisposition and area of the wrought or ductile metal with relation'tothe cast metal in the wearing part of the brake-shoe change constantlyas the braking face of the brake-shoe wears away in use, andinthis wayprevents the braking face `of the brake-shoe from wearing the tread ofthe wheel unevenly.

One of the great advantages in the construction of the reinforcedbrake-shoe of the presentinvention resides in the use of a back platehaving its ends or other parts thereof bent, so that same may not onlyextend into and form part of the wearing face of the brake-shoe, but maytake the place of the inserts ordinarily used. VIn this way the plate ator adjacent to the back of the brakeshoe is combined with the parts ofsame that may take the place of inserts in the wearing partof t-hebrake-shoe, the result being the provision of a stronger and moreefficient brake-shoe.

I claim:

1. A reinforced brake-shoe composed of cast-metal'. and having aperforated plate of r metal located adjacent tothe back thereof,

the ,end portions of saidplate being bent inwardly adjacent to the endsof the brakeshoe so as to extend toward each other and into the wearingpart of the brake-shoe.

2.-A reinforced brake-shoe composed of cast-metal and having aperforated 'plate of metal located adjacent to the back thereofl` and aperforated plate of metal located adjacent to the wearing face of thebrakeshoe, the end portions of said first-mentioned plate being bentinwardly adjacent to the ends ofthe brake-shoe so as to extend into ktheWearing part of the brake-shoe.

'3. A reinforced brake-shoe composed of cast-metal and having aperforated plate of metal located adjacent to the back thereof,- the endportions of said plate being bent inwardly at or adjacent to the ends ofthe brake-shoe so as to extend into the wearing partof lthe brake-shoe,and a plurality of perforated plates of metal located interme# diatesaid first-mentioned plate and the wearing face of the brake-shoe.

4. In a brake-shoe, av shoe proper and a pair of spaced metal plates`embedded in the shoe, the ends of one of the plates being bent inwardlyto inclose the ends of the. other plate. I l

5. In a brake-shoe, atshoe proper and a plurality of spaced metal platesembedded inthe shoe, the ends of an outermost late being'bentinwardlyvto inclose the en slof the remaining. plates.

6. A reinforced "brake-shoe having a plate disposedl adjacent to theback thereof and having its ends bent inwardly toward each other inspaced relation and extending into the wearing part ofthebrake-shoe anda second plate which bridges the space bef tween said ends of the firstmentioned plate.

7. A reinforced brake-shoe having a plate` disposed adjacent to the backthereof and having'its endsbent inwardly towardv each other in spacedrelation and `extending into 20 the wearing part of theUbrake-shoe, anda ylocated adjacent tothe back. thereof and having parts of sameadjacent to the marginal edges of the brake-'shoe bent inwardly so thateachv of theparts extends from side to-'side of the brake-shoel and intothe wearing part of said brake-shoe.

- In testimony .whereof I hereunto aiiix my signature in the presence:of two witnesses., v i JOHN J. MORSE. Witnesses l t GEORGE G. ANDERSON,

WALTER C. GUELS.

